Im in my early 20s so I was in your shoes not to long ago. Just literally don't GAF about what people think of your stutter. They can F off. Go get good something. Youre 17 so I assume youre a senior. Do you play sports? Your team should have your back. If not, find something to get good at. What helps me is setting big goals and achieving them. If you have no friends though, that should be your first goal. Crack some jokes or compliment people to make a conversation. But don't be awkward about it lol. After you make friends, your life will change. But never stop achieving and setting new goals. Be tough, you got this bro! Keep me posted on your progress. Ps. If those Aholes won't be your friend..... I will